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Why do I get "this CPU is not compatible with 64-bit mode" on a 64-bit processor?

Fresh5 days ago
Mar 15, 202628397 views
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Problem

I have a 32-bit Ubuntu 10.10 as a host OS, VirtualBox 4.0, Windows 7 64-bit Professional as a guest OS. The laptop processor is 64-bit. When I try to load Windows 7 64-bit in VirtualBox, the error appears: attempting to load a 64-bit application, however this CPU is not compatible with with 64-bit ā€¦

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Fix for: Why do I get "this CPU is not compatible with 64-bit mode" on a 64-bit processor?

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I believe it's telling you VirtualBox's virtual CPU, though, is not 64-bit compatible. Is hardware virtualization enabled, and have you enabled VirtualBox's 64-bit support for the specific VM in question? http://www.virtualbox.org/manual/ch03.html#iā€¦

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